President Felipe Calderon on Thursday unveiled a “No More Weapons!” billboard made with crushed firearms and placed near the U.S. border. He urged the United States to stop the flow of weapons into Mexico.

The billboard, which is in English and weighs 3 tons, was placed near an international bridge in Ciudad Juarez and can be seen from the United States.

Calderon said the billboard’s letters were made with weapons seized by local, state and federal authorities.

“Dear friends of the United States, Mexico needs your help to stop this terrible violence that we’re suffering,” Calderon said in English during the unveiling ceremony.

“The best way to do this is to stop the flow of automatic weapons into Mexico,” he added.